A rent heavy market, with a shortage, I am receiving regular requests for rentals in these markets.  

An offer was received that I accepted. 

It takes them forever to sign documentation and make decisions.

The bathrooms received a luxury makeover with marble countertops and custom fixtures, while I also reconfigured the layout to create a more open and inviting space.

My go-to response is always: Do you have a Move-In Inspection to document the home's condition beforehand?

Quote from @Robin Smith: I also received this email.

The insurance policy must name [Landlord's Name or Property Management Company] as Additional Interest, ensuring the Landlord receives notice of any policy changes or cancellations.

You search for existing guides, select the best and provide the link or the document to your clients.

Would you have any recommendations, in your experience, for what to look out for in the documents that would be red flags or items that would negotiable?

If the software is not simplifying your life or making you more accurate, you shouldn't use it.Software does have extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.